How Hard is Las Vegas Water?

How Hard Is Las Vegas Water

Las Vegas water is categorized as very hard.

The concentration of dissolved minerals in a water supply are what cause “hard” or “soft” water.

Las Vegas has two nontoxic minerals that cause hard water concerns:

  • Calcium
  • Magnesium

These two minerals come from the mineral-dense Colorado River emptying into Lake Mead.

More information is available from LVVWD.

Las Vegas Water Hardness Numbers

Vegas water has a hardness of 267 parts per million (ppm) or 16 grains per gallon.

For comparison, Denver has 97.5 parts per million or 5.8 grains per gallon.

Washington, DC has 70 to 120 parts per million or 3 – 9 grains per gallon.

Should You Be Concerned?

Aside from mineral buildup on fixtures, lack of soap lather, and spots on dishes, water hardness isn’t a health risk.

Want to avoid those issues?

You can soften your water using a water filtration system in your house.

Our top choices are available on the Water Filters page.

Want to Learn More About Water Quality?

We’ve analyzed almost 800 cities in the United States looking for contaminants and quality issues.

Las Vegas ranks high for the number of contaminants: 31 total and 14 that may cause health issues.

Find out:

  • What’s in your water.
  • Where your water comes from.
  • What you can do about cleaning it up.

See what Las Vegas residents should be paying attention to here.

Live in North Las Vegas? We covered that area, too.


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